protists powerpoint

By Steven Campbell

Causes African sleeping sickness Unicellular Single flagella Some Euglenozoans have chloroplasts Do not have a cell wall Trypanosoma brucei http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/P/Protists.html

Single celled Lives in freshwater, saltwater,

soil, and even as parasites. Sarcodina Reproduces asexually Moves via pseudopods, and

also consumes other organisms (like protists) with pseudopods

Amoeba proteus http://www.scienceclarified.com/Al-As/

Amoeba.html

Single celled Move via cilia (is a ciliate) Eats via a gullet, and feeds on

microorganisms like yeast and bacteria

Can be found in freshwater rivers, lakes, and ponds

Ciliophora Paramecium aurelia http://www.bio.umass.edu/biology/conn.river/

parameci.html

Known to cause malaria Apicomplexa Single-celled Lives in the saliva of

mosquitoes and as a host in humans and other animals

Is a parasite and requires a host to live

Plasmodium falciparum http://en.wikipedia.org/wiki/Plasmodium

Unicellular Contains chloroplasts Lives in a marine habitat Can reproduce

“explosively” to cause red tides and kill mass amounts of fish

Moves by multiple, irregular flagella

Ceratium hirundinella http://en.wikipedia.org/wiki/Dinoflagellate

Unicellular Found in freshwater Responsible for most

freshwater photosynthesis – are the main producers

Heterokontophyta Arachnoidiscus ehrenbergi http://users.rcn.com/jkimball.ma.ultranet/

BiologyPages/P/Protists.html

Contain golden-brown chloroplasts

Have two dissimilar flagella Lives in cold fresh water Heterokontophyta Causes foul-tasting water

occasionally Unicellular Prymnesium parvum http://www.cs.cuc.edu/~tfutcher/

Chrysophyta.html http://www.tpwd.state.tx.us/landwater/water/

environconcerns/hab/ga/

Multicellular Has cell walls made of

cellulose Is a fish parasite and can

cause economic damage to fish hatcheries

Has hyphae Heterkonta Saprolegnia parasitica http://botit.botany.wisc.edu/toms_fungi/

saprolegnia.html http://en.wikipedia.org/wiki/Saprolegnia

Lives in the ocean Uses the pigment

phycoerythrin, which allows it to dwell in deeper areas

Important source of food in Asia

Multicellular Autotrophic Rhodophyta Kallymenia perforata http://www.ucmp.berkeley.edu/protista/

rhodophyta.html http://www.tolweb.org/Rhodophyta

Unicellular Uses cilia to move and

capture prey Common in freshwater

lakes and streams Ciliophora Stentor roeseli http://en.wikipedia.org/wiki/

Stentor_(protozoa)

Reproduce by budding Unicellular Usually anchored to

something, although they can be free-swimming via cilia

Uses a myoneme to coil up like a spring

Ciliophora Vorticella convallaria http://www.microscope-microscope.org/

applications/pond-critters/protozoans/ciliphora/vorticella.htm

Technically unicellular, but have lots of nuclei and are formed when many flagellates fuse

Move by streaming cytoplasm, similar to amoebas but on a larger scale.

Lives in cool, moist, shady areas like dead leaves and logs

Amoebozoa Physarum polycephalum http://www.ucmp.berkeley.edu/protista/

slimemolds.html

1 flagella Single-celled Euglenozoa Has a distinct eyespot

or stigma that reacts to light

Lives in marine and fresh water

Euglena gracilis http://euglena.msu.edu/

Lives in the gut of termites to help them digest wood

Has 4 anterior flagella Unicellular Metamonada Mixotricha paradoxa http://en.wikipedia.org/wiki/

Mixotricha_paradoxa http://microbewiki.kenyon.edu/

index.php/Mixotricha

Phyla Apicomplexa Single celled Can cause diarrhea Only uses human hosts Cyclospora cayetanensis http://en.wikipedia.org/wiki/

Cyclospora_cayetanensis